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They allow capillary walls to open and become leaky.
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∙ 11y ago
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What causes capillaries to dilate during inflammatory response?
Histamine
During an allergic reaction what chemical is released?
histamine
What is the triple response of intradermal injection of histamine?
On intradermal injection of histamine the following three reaction occurs 1. Red spot formation - due to intense capillary dilation 2. Wheal formation -due to exudation of fluid from capillaries and vanules 3. Flare formation - due to arteriolar dilation mediated by axon reflex
Do mast cells release histamine as a result of the allergen-antibody reaction?
Yes
Redness on the neck and upper chest?
This a histamine reaction to stress or being nervous.
What are the symptoms of an allergic reaction to titanium?
externally. redness and heating of contact area. internally Excess histamine production What does excess histamine production mean? And how can it be tested for?
What is a chemical that stimulates the dilation of capillaries?
There are many vasodilators. These include histamines, nitric oxide, CO2, H+, K+, adenosine and epinephrine.
Why do you get red bumps after you are bitten by a parasite?
It is due to Histamine released at the site ,a reaction of body.
What is the role of histamine?
to send more blood to an injury to help heal it
What pharmacololgically active amine is responsible for the signs and symptoms encountered in an allergic reaction?
Histamine
What is the substance released during the inflammatory reaction that causes small blood vessels to dilate?
Histamine
What is the substance released during the inflammatory reaction that causes small blood vessels to dilate is?
Histamine
